Introduction

The purpose of this chapter is to describe the DEDL Discovery and Data Access services provided under the Destination Earth - Data Lake project.

Harmonised Data Access to DestinE Data Portfolio

Destination Earth Data Lake allows users to discover, search and access data from multiple sources.

  • Digital Twin outputs - See Introduction

    • DT on Climate Change Adaptation

    • DT on Weather-induced and Geophysical Extremes

  • Federated Data Providers - See DestinE Data Portfolio

  • Fresh Data Pool (a rolling buffer of commonly used datasets) - See Fresh Data Pool

HDA (Harmonised Data Access)

The HDA service relies on the use of the STAC (SpatioTemporal Asset Catalogues) standard.

STAC is an open specification designed to improve the discovery, accessibility, and interoperability of geospatial data.

Datasets are presented as STAC collections, along with the list of associated providers.

  • Discovery of services and datasets with related metadata information

  • Search within datasets

  • Access data

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EODAG – Earth Observation Data Access Gateway

EODAG (Earth Observation Data Access Gateway) is a command line tool and a Python package for searching and downloading remotely sensed images while offering a unified API for data access regardless of the data provider. EODAG already supports several data providers, DEDL is going to be added as one of the providers supported by EODAG. EODAG will help the scientific community and integrators to access and download Digital Twin data and federated data.